Boosieve

Hello. I recently purchased a vintage starrett 12” combo square. Vial gone and the small scribing tool as well. Do you know if those can be replaced with new OEM from Starrett or do I need to find period parts? Same question applies as far as the circle/centers anvil and protractor. I’m a new hand tool woodworking enthusiast and building out my kit with older tools that I restore. Any help is appreciated. I can provide a pic or two as needed. Thanks. Brad